MODBUS COMMUNICATIONS
HeatNet Control V3
Page 125
MODBUS Input Variables (Read Only)
Address
Name
Raw Data
Type
Scale
Description
Valid Values/Range
30373
Boiler5LocalFlow
30374
Boiler6LocalFlow
30375
Boiler7LocalFlow
30376
Boiler8LocalFlow
30377
Boiler9LocalFlow
30378
Boiler10LocalFlow
30379
Boiler11LocalFlow
30380
Boiler12LocalFlow
30381
Boiler13LocalFlow
30382
Boiler14LocalFlow
30383
Boiler15LocalFlow
30384
Boiler16LocalFlow
MODBUS
— BoilerStatus1 Flags
Bit
Description
Valid Values/Range
0
N/A
0 = closed, 1 = open
1
Blower Running
0 = off, 1 = running
2
Ignition Alarm
0 = ok, 1 = alarm
3
Valve Alarm
0 = ok, 1 = alarm
4
High Limit
0 = ok, 1 = tripped
5
Air Prove Switch
1 = open, 0 = closed
6
RESERVED (FACTORY)
7
Software Operator
0 = off, 1 = on
8
Header Sensor not Detected
0 = detected, 1 = not detected
9
Supply Sensor not Detected
0 = detected, 1 = not detected
10
Return Sensor not Detected
0 = detected, 1 = not detected
11
Outside Sensor not Detected
0 = detected, 1 = not detected
12
System Pump
0 = off, 1 = on
13
Combustion Air Damper
Obsolete
–Available only on v1.x controls
0 = off, 1 = on
14
Master Boiler
0 = member, 1 = Master
15
Boiler Detected (at this address)
0 = not detected, 1 = detected